function P7_swapClass(){ //v1.4 by PVII
 var i,x,tB,j=0,tA=new Array(),arg=P7_swapClass.arguments;
if(document.getElementsByTagName){for(i=4;i<arg.length;i++){tB=document.getElementsByTagName(arg[i]);
for(x=0;x<tB.length;x++){tA[j]=tB[x];j++;}}for(i=0;i<tA.length;i++){
if(tA[i].className){if(tA[i].id==arg[1]){if(arg[0]==1){
tA[i].className=(tA[i].className==arg[3])?arg[2]:arg[3];}else{tA[i].className=arg[2];}
}else if(arg[0]==1 && arg[1]=='none'){if(tA[i].className==arg[2] || tA[i].className==arg[3]){
tA[i].className=(tA[i].className==arg[3])?arg[2]:arg[3];}
}else if(tA[i].className==arg[2]){tA[i].className=arg[3];}}}}
}
// the following PVII (www.projectseven.com) function writes the styles that control menu hiding and showing
// so that browsers with script disabled can see a fully expanded menu without having to toggle
// the entire menu onLoad, allowing the onLoad event to simply expose a single menu
function P7_writeStyles(a){ //v1.1 by PVII
 var tS="<sty"+"le type=\"text/css\">";
 tS+="\n"+a+"\n<"+"/sty"+"le>";document.write(tS);
}
P7_writeStyles('.cierra_nav ul{display:none;}.abre_nav ul{display:block;}.cierra_cont ul{ display:none;}.abre_cont ul{ display:block;}');

function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}